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Numerical simulation of 3-D fractional-order convection-diffusion PDE by a local meshless method

Mohan Srivastava, Hijaz Ahmad, Imtiaz Ahmad, Phatiphat Thounthong, Muhammad Nawaz Khan

2020Thermal Science33 citationsDOIOpen Access PDF

Abstract

In this article, we present an efficient local meshless method for the numerical treatment of 3-D convection-diffusion PDE. The demand of meshless techniques increment because of its meshless nature and simplicity of usage in higher dimensions. This technique approximates the solution on set of uniform and scattered nodes. The space derivatives of the models are discretized by the proposed meshless procedure though the time fractional part is discretized by Liouville-Caputo fractional derivative. Some test problems on regular and irregular computational domains are presented to verify the validity, efficiency, and accuracy of the method.

Topics & Concepts

Regularized meshless methodDiscretizationFractional calculusApplied mathematicsDiffusionSpace (punctuation)Set (abstract data type)Computer scienceConvection–diffusion equationMathematicsMathematical optimizationMathematical analysisSingular boundary methodPhysicsFinite element methodBoundary element methodProgramming languageOperating systemThermodynamicsFractional Differential Equations SolutionsNumerical methods in engineeringDifferential Equations and Numerical Methods